What is the catalog number for Recombinant Human MEC (rHuMEC/CCL28)?

The catalog number for Recombinant Human MEC (rHuMEC/CCL28) is orb1494952.

What sizes are available for Recombinant Human MEC (rHuMEC/CCL28)?

Recombinant Human MEC (rHuMEC/CCL28) is available in the following size(s): 1 mg, 5 µg, 20 µg.

How many pack sizes does Recombinant Human MEC (rHuMEC/CCL28) come in?

Recombinant Human MEC (rHuMEC/CCL28) is available in 3 different pack sizes.

Is Recombinant Human MEC (rHuMEC/CCL28) in stock?

Recombinant Human MEC (rHuMEC/CCL28) is currently made to order / not held in immediate stock. Contact us for lead time.

Recombinant Human MEC (rHuMEC/CCL28)

Human CCL28 (CC chemokine ligand 28) is a novel CC chemokine identified by TBLASTN searches of the Human Genome Systems (HGS) and Genbank dbEst database using a human chemokine consensus sequence. Human CCL28 cDNA encodes a 127 amino acid (aa) residue precursor protein with a putative 22 aa residue signal peptide that is cleaved to produce the 105 aa residue mature protein. Human and mouse CCL28 are highly conserved, sharing 83% aa identity in their mature regions. Among CC chemokines, CCL28 shares the most homology with CCL27/CTACK. The mouse CCL28 gene has been mapped to the distal region of chromosome 13. Human and mouse CCL28 RNA expression was found to be highest in normal and pathologic colon with the protein being expressed by epithelial cells. Human CCL28 RNA was also present in normal and asthmatic lung tissues. The receptor for CCL28 has been identified as the CCR10 (GPR2 orphan receptor) which is also the receptor for CCL27/CTACK.

Product Specifications

Source

Escherichia coli.

Field of Research

Immunology & Inflammation

Endotoxin

Less than 1EU/mg of rHuMEC/CCL28 as determined by LAL method.

Purity

>97% by SDS-PAGE and HPLC analyses.

Bioactivity

Fully biologically active when compared to standard. Determined by its ability to chemoattract human lymphocytes using a concentration range of 1.0-10.0 ng/ml, corresponding to a Specific Activity of >1 x 105 IU/mg.

Form

Lyophilized from a 0.2mm filtered concentrated solution in 20mM PB, pH 7.4, 130mM NaCl.

Molecular Weight

12.3 kDa, a single non-glycosylated polypeptide chain containing 108 amino acids.

Storage Conditions

This lyophilized preparation is stable at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze/thaw cycles.

Notes

For research use only.

Applications Notes

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < -20°C. Further dilutions should be made in appropriate buffered solutions.